TWI287078B - Ignition arrangement for stacked projectiles - Google Patents

Abstract

An ignition arrangement for a barrel assembly (10) including a barrel (11) having a plurality of projectiles (15a, 15b, 15c) axially stacked within the barrel (11) together with respective propellant charges (20) for propelling the projectiles sequentially from the barrel, said ignition arrangement including a fuse (21, 22) disposed in a cavity (27) provided in a body (18) of each projectile, wherein the cavity (27) communicates both forwardly (28) and rearwardly (29) of the projectile body (18); whereby in use, said fuse (21) burns at a controlled rate in the cavity (27) and causes ignition of the propellant charge (20) associated with said projectile (15a), which in turn ignites the next following fuse (22) associated with a trailing projectile (15b).

Description

1287078 Di, invention description: [Technical field to which the invention pertains] Background of the invention Field of the invention 5 The invention relates to an ignition device for munitions and weapons. In particular, the present invention relates to propellant fuel fillers for igniting bullets that are axially stacked within the gun body. The invention also relates to a method of igniting a propellant fuel charge for a stacked bullet. L· mr ]1 10 BACKGROUND OF THE INVENTION Several methods for igniting propellant fuel fillers associated with bullets axially stacked within a gun body have been disclosed in the prior art. In these methods, the electrical conductor is required to direct the ignition signal to the respective propellant fuel fill of each of the bullets in the gun body. This increases the complexity of the individual body assembly of the stacked bullets and the construction of the weapon that adds to the multiple body assembly. The electronic ignition devices of the individual bullets discussed herein provide maximum flexibility for the ignition of individual bullets, but some applications of this technology still require less complex ignition devices. Any of the prior art techniques referred to in this specification should not be construed as an admission that the skill of the art forms a general knowledge relating to the ignition system of Australian munitions and weapons. SUMMARY OF THE INVENTION According to a first feature of the present invention, an ignition device for a gun body assembly is provided, and the body assembly includes a plurality of bullets axially stacked within the gun body. a self-propelled body, and a respective propellant fuel filler for continuously ejecting the shotgun from the body, and the ignition combination includes: 5 a hole provided on the body of each bullet, wherein the hole and the body are front and rear And a fuze disposed in the aperture: the fuze includes a portion that is burned at a predetermined rate; thus, in use, the fuze is burned in the aperture to cause combustion of the propellant associated with the sub-elastic . The forward flow of the aperture allows the fuse to be burned by triggering the combustion of the fuel filler prior to one of the previous bullets in the axially stacked bullets when the previous bullet was fired. The 10 hai bow 丨 h is preferably elongated and may include three parts, a front part, a rear 4 injury and a middle part. The intermediate portion suitably includes a fuse material that can be burned at a predetermined rate and is substantially longer than the front portion or the rear portion. Preferably, the 'bullet' is provided with a first aperture that communicates between the aperture and the front of the body, and a second aperture that communicates between the aperture and the rear of the body. Preferably, the aperture is aligned with the axis of the bullet and is suitably coaxial with the bullet. The second and second apertures are generally smaller in size than the aperture, and the first aperture is preferably smaller than the second aperture. The fuse is preceded by a fuse material that burns the propellant and ignites the rain portion and sequentially ignites the middle portion of the fuse. In the case of a bullet in the gun body or a bullet in the forefront, the front part of the fuse can be ignited by electromechanical force by the first or 1287078 front aperture. If necessary, use an initiator. The intermediate portion is constructed of a fuse material that can be burned at a predetermined longitudinal rate, and the intermediate portion ignites the portion of the fuse after the end of the combustion of the intermediate material. The fuse material in the middle portion can also be provided with a sealing function because the burning fuze material can be provided with at least a portion of the seal in the cavity and/or the first aperture. Thus, the rear portion of the fuse consists of a fuze material that can be ignited by the combustion intermediate portion, and the associated push filler can be ignited via the second or rear aperture in sequence. ... 〇 Preferably, the fuse includes a sturdy sleeve suitably composed of a metal comprising a fuze material. If necessary, the sturdy sleeve is held in a hole placed in the bullet body. The predetermined combustion rate is calculated with reference to the propellant fuel charge stacked in the bullet, whichever is the desired time between nine. It should be understood that this calculation can be used to calculate the lateral ignition time of the part before and after the fuse. The separate propulsion of the bullets continuously from the smashing body is characterized in that the ignition group as described above is based on another feature, and the present invention is prepared according to another feature, and the present invention is provided with a smashing assembly. Including a snatch 'The snatch has a number of axial stacks in the grab _ bullets, as well as a fuel filler, the snatch one ignition combination. The present invention provides a bullet having a body portion, a bullet,

And wherein the bullet is disposed between the aperture and the sub-aperture and the space between the aperture and the bullet, and the body portion has a material of constant velocity combustion, and wherein the sub-port 1287078 is preferably formed of at least two separate members. The fuze is inserted into the cavity so that the member is properly secured together after the fuse is inserted to hold the fuse in the bullet. The bullet members are detachably connected together if necessary. The two members of the sub-body may comprise a head element suitably constructed of steel and a tail element suitably composed of aluminum and comprising a tail hem portion. 0 The propellant fuel filler is suitably formed and can be accommodated at the end. Inside the tail hem. In use, the tail hem portion can be engaged with a mandrel, and the mandrel 10 is used to drive an outer surface of the tail hem portion to be in operational sealing engagement with the plucking hole. The mandrel is formed by advancing a fuel filler or a head of a tail bullet. In another example, the nose of a tail bullet can be driven into a sealing engagement with an inner end surface of one of the tail hem portions. Alternatively, the bullet body may be formed as a single piece and includes a hole for holding the fuse 15 which includes a tubular body held in the hole. Other alternative bullet configurations suitable for preparing a fuze hole and disclosed in the applicant's rut early claims include those disclosed in pCT/Au98/〇〇4〇9 and PCT/AU98/0414. According to the other 4 temples, the present invention includes a plurality of body assemblies including a plurality of gun body assemblies having a plurality of bullets stacked in the body, and a bullet for connecting the shells in the gun body. Each of the fuel fillers is propelled, wherein the plurality of bullets are as described above. According to the other four temples, the present invention provides a method for igniting a plurality of propellant fuel fillers associated with the respective bullets axially stacked in the gun body, wherein 1287078 a fuse is disposed in one of the holes of each bullet body. The bullet is provided with a first aperture of fluid between the aperture and the front of the bullet and a second aperture that circulates between the aperture and the rear of the bullet, and the method comprises the steps of: igniting a fuze in front of the gun body or in the foremost bullet The fuse burns at a predetermined rate in 5 holes six and causes combustion of the propellant fuel filler associated with propelling the fuel fill. The ignited propellant fuel filler advances the front bullet from the gun body and ignites the fuse in a bullet below the stack. The remaining bullets of the several bullets are successively launched from the body. BRIEF DESCRIPTION OF THE DRAWINGS In order to make the present invention easy to understand, the following description will be made in detail with reference to the drawings and preferred embodiments of the present invention, wherein: FIG. 1 is a gun body assembly of the first embodiment incorporating an ignition combination. FIG. 2 is another schematic cross-sectional view of a bullet incorporated in the fuse of the first embodiment; FIG. 3 is a schematic cross-sectional view of another bullet incorporating the fuse of the second embodiment of the present invention. Fig. 4 is a perspective view of the fuse-shell of the second embodiment. [Embodiment] Description of Embodiments of the Invention Referring to Figure 1, there is shown a gun body assembly 10 including a body 11 having a muzzle end 12 and a body end on the muzzle The cover 13 and a rear end 14 are made of a plastic or cellulose material and can block 1287078 foreign matter from entering the gun body 11. In some applications of the invention, such as border defense, weapons using the gun body assembly can be exposed to the weather for a long period of time. The gun body end cap 13 is optional. If the gun body end cap is used, each gun body cover 5 can be individually removed before ignition, or the multi-gun body weapon gun body cap can be connected together to allow the operator to The sides of the weapon are removed one at a time. If the gun body cover is removed individually, the body cover can be removed by the action of leaving the first bullet of the gun body; that is, the forward movement of the first bullet will compress the gun body from its position. Cover the air behind the end of the gun body, and the first bullet 10 does not hit the gun body cover. The gun body houses a plurality of bullets 15a, 15b, 15c each having a body 18 including a head member 16 and a tail member 17. The tail member 17 further includes a tail hem portion 19 extending rearwardly adjacent to a rear bullet in this embodiment. Further details of the bullet 15, particularly in relation to a 15 hole 27 provided in the bullet body 18, will be described below in conjunction with Figure 2. The bullets 15 are axially stacked in the gun body with the propellant fuel filler 20, and the propellant fuel filler 20 is disposed in the tail hem portion 19 of each bullet. The propellant fuel fill 20 in this embodiment is a solid block each having a progressive weight of propellant. The progressive weight 20 of the propellant fuel fill allows for different muzzle rates of the stacked bullets 15. For example, in some applications, it is best to get the bullets to the destination almost simultaneously. An inner end face 30 of the tail hem portion 19 engages a nose portion of a rear bullet as a mandrel to urge the outer surface 33 of the tail hem portion 19 into operative sealing engagement with the bore of the gun body 11. In another embodiment, the tail 1287078 of the bullet may be relatively rigid and have a surface that is complementary to the head face of the rear bullet such that a sealed engagement is formed between the bullets. In another embodiment, the propellant fuel fill can be sealed relative to the bullet. This combination of seals is disclosed in International Patent Application No. PCT/AU03/00318, filed on March 17, 2003. A hole 27 is provided in each of the bullet bodies 18 to accommodate a fuse 22 that is part of the ignition configuration for advancing the fuel fill 20. The aperture 27 is cylindrical and is coaxially positioned in the bullet and communicates with the front and rear of the bullet 18. The aperture communicates with the front of the bullet body 18 via a first aperture 28 disposed on the head member 16 and communicates with the rear of the bullet body 18 1 through a second aperture 29 in the tail member 17. It will be appreciated that in other embodiments, the aperture extending from the front to the rear of the bullet may be one of several forms that are non-cylindrical and/or may be positioned coaxially in the bullet. In this embodiment, the front or foremost bullet 15a in the snatch includes a starter fuze that is adapted to be ignited by a first control unit (not shown) via a power signal supplied by an ignition 15 circuit 23. However, the fuses 22 contained in the remaining bullets 15b, 15c of the stack are adapted to be ignited by the combustion of the propellant fuel filler 2 associated with the front bullets, 15b) in the stack. From the stealing u, the only thing needed to start a few bullets 15 is the power signal. Other embodiments may employ chemical or mechanical activation of the fuse, and may also include a series of shots that are fired in a single body. For example, a gun body consisting of twelve stacked bullets of twelve fuses can be used to control the three circuits of each group of bullets as desired. The front bullets in each group do not need to have an internal fuse, and another major ignition fuse from the outside can start the propellant after the moon bullet. Another type of ignition circuit is a single circuit that uses the input 11 1287078 to send a flat horse ignition signal to all three start firing lines, where each starter only responds to a particular individual. Referring particularly to Fig. 2, the head portion 16 and the tail portion π member of the bullet body 18 are arranged to be combined in the 彡丨彳3 22 after the coaxial hole 27 is inserted. The head member 16 includes a sleeve portion 31 joined by a plug portion 32 of the tail member 17, and the portion may include a cooperating thread for subsequent release, and the portion may be fixed together for holding The bow letter 22 is in it. In this embodiment, the head element 16 is made of steel and the tail element 17 is made of aluminum alloy. When the combination is completed, the coaxial aperture 27 communicates with the front of the bullet body 18 via a front aperture 28 that is conveniently formed on the head member 10 16 . The coaxial aperture 27 also communicates with the rear of the bullet 18 via a rear aperture 29 on the tail member 17 conveniently. In particular, the outlet of the rear aperture is at the tail element adjacent the propellant fuel fill 20 associated with the bullet 15. The diameter of the front aperture 28 is relatively small compared to the coaxial aperture 27 to reduce the passage of the inflamed article as a forward propellant fuel filler burns, as well as the loss of pressure. The diameter of the rear aperture is also fairly limited, but is not as restrictive as the front aperture to facilitate propulsion of the fuel filler 2 (as indicated by the dashed line). Preferably, the apertures 28, 29 are smaller in size than the fuse 22 to hold the fuses in the apertures 27. In this embodiment, the fuse 22 is constructed in three parts, a front portion 24, a middle portion 25, and a rear portion 26. The front portion 24 is constructed of a bowing material ignited by a combustion propellant fuel filler that can be disposed in front of the front or first aperture 28. In contrast, the rear portion 26 of the fuse 22 is constructed of a fuse material that is disposed after the passage of the second or the second aperture 29 and is disposed after the new propellant fuel filler. The fuze material can be held in a tubular housing suitably constructed of a thin metal material. More importantly, the intermediate portion 25 of the fuse 22 is constructed of futuristic material 5 sized and comminuted at a predetermined rate, particularly at a desired rate along its length, and can also be ignited and passed through the rear and front portions of the fuse. I was ignited. Suitable fuze materials having these characteristics, such as the delayed composition listed in the table below, are commercially available from The Ensign Bickford Company of Simsbury, CT. Delay composition specification component nickel alloy delayed composition MIL-C-13739A wrong nickel alloy, powdered, MIL-Z-11410 strontium chromate, MIL-B-550 ΪΪ ' ' into MIL-M-21383A~~ ^ MIL- P-217 Magnesium Powder, JAN-M-476 Barium Chromate, MEL-B-550 Chromium Gloss, JAN-L-488 Tungsten Delay Composition—___ MIL-T-23132A Tungsten Powder, AS-2686 Barium Chromate, MEL -B-550 Potassium Percarbonate, MIL-P-217 Table 1 10 The burning rate of the fuze material in the middle section is selected based on the desired time between propelling the fuel fill and the subsequent shot. The burning rate of the fuze is determined in part by (4) the density in the embedding chamber and the volume of the chamber itself. The fuse link structure of the present invention can achieve an ignition rate of up to _, _ ah per minute, 60, _rpm and in a multi-pick configuration. The single-puncture rate that can be expected is basically between - and 45,000 rpm. In the other _ of the present invention, when it burns, the remaining dazzle

In the embodiment, the selective material (perhaps a filler) of the composition of the intermediate material is provided with a sealing action in the front aperture 28 13 15 1287078 and/or across the aperture 27 to reduce the loss of pressure. Alternatively, the fuse can be placed in a housing that melts and occludes the aperture 27 during or after the fuse is burned. It is designed to facilitate this step before and after the fuse chamber in the bullet of the first embodiment. 5 The front and rear portions 24, 26 of the end of the fuse 22 are placed to cover, as it is believed that the fuse material suitable for controlling combustion at a steady rate may fail to initiate the combustion of the fuel filler, and vice versa. In the case of proper synthesis of fuze materials and propellants, the front and rear portions do not need to cover the fuze. In some embodiments, the portion may include a co-active additive, 10 which is used in an amount that is longitudinally graded from the ends of the fuse as desired to facilitate lateral ignition between adjacent portions. The second embodiment of the ignition combination of the present invention will be described below in conjunction with Figures 3 and 4. Figure 3 is a cross-sectional view of a bullet 35, which differs from the first embodiment in that it has a single piece or a single body 36, and a threaded longitudinal hole 37 is placed 15 on the head of the single body. . The aperture defines a hole for retaining a fuse 34 that communicates with the front of the head 38 and rearwardly toward the tail 39 of the bullet. In another form, the bullet holes can be relatively smooth so that the fuses of similar configuration are pressed into the bullet body in a distracting manner. The fuse for the ignition combination of the second embodiment has a body 4 adapted to be inserted into the bullet hole 37 as shown in Fig. 3, and the fuse is purchased as a sleeve having an external thread 42 and accommodating the fuse material. An inner hole 43 (not shown). - The elongated hole 44 is provided across the end face of the letter body 41 to facilitate engagement with a tool. The difference from the first embodiment of the first embodiment is that the holes provided on the bullet body 36 1287078 and the inner holes 43 on the bow 4G are not provided with a narrowing aperture or the like. The cement is pressed into the inner cavity of the fuse and forms a stable compressed material. It should be understood that other embodiments of the present invention (4) may employ a shortened fuse body 41 and/or a bullet body 36 as needed. The exemplary fuse 40 is designed to be inserted into a 15.7 mm bullet, and at least the delay portion of the lead is made of a material consisting of an ignition mixture, A1A, sold by Eagle Picher of Joplin, MO. The composition of the ignition mixture, ΑΙΑ" is as follows: False 65% (120A Foote Mineral Co or equivalent) Red iron oxide, JAN-I-706 25% (with exception)

SuperflossTM 10% (, 'Superf loss, for a ground and calcined diatomaceous earth) It is to be understood that the type of fuze composition and propellant can only be determined after determining the application of the ignition system and the bullet. Fuzes, Propellants, and Fuzes 15 The characteristics of the holes are determined by the caliber and rush rate required for the particular application. To achieve a certain aperture and muzzle rate, a specific type and dose of propellant can be selected. Since the choice of propellant is necessary to select a suitable fuze composition, the choice of fuze composition is determined to some extent by the size of the fuze hole. 20 Certain embodiments of the ignition fuze combination of the present invention provide the following advantages: 1. In the event that the previous bullet is not ignited, the chance of subsequent bullet firing is significantly reduced. I believe that when the previous bullet has not been ignited, it will not jump over and let the latter bullet ignite. 1287078 2. This system also reduces the number of coils required for each bullet in the existing electric starting system. Each of the propellant fuel fillers is provided with a conductor (4), which means that the body of the invention is lighter and lighter. 5 3. Due to the above two control units. The gun body system requires a small and simple ignition. 4. Finally, the ignition combination significantly reduces the cost.

It should be understood that although the advancement of the fuel filler in the forward direction causes several bullets to be fired from the gun body through the string of fuses 22 and the submunition column 2, this is not a disadvantage in some cases. The fuze ignition combination of the present invention can be conventionally incorporated or incorporated into the gun body assembly of the present invention. For example, a plurality of personal assemblies using the ignition combination of the present invention can be easily stacked together in a launcher configuration as described in the patent application above. The advantage of using more than one gun body is that the 15 launcher weapon system is repeatable, and different grabs can carry different types and quantities of bullets.

Thus, any application of a fixed number of bullets to be ignited in either instance is suitable for the present invention. A specific example of such an application is self-defense against a vehicle with a shoulder-skinned tank. In this example, a predetermined number of bullets can be fired together from the body to achieve the high precision required for the missile to be intercepted. Such bullets on the launcher can be placed in vehicles, such as tanks, to counter the threat of launching anti-tank missiles at the shoulders. Anti-tank missiles are basically launched on vehicles at fairly close distances (eg 05Km). Therefore, the difficulty of the tank is that the flight time of the missile is very short, 16 1287078 and the electronic price of the threat can be almost immediate. The handle defense system, such as qi dance or machine gun, is difficult to respond quickly and efficiently to cope with the threat. . In the case of a machine gun, when it starts to ignite and has a good luck, it also has several bullets to ignite. However, the lightweight and lightweight bullet launcher 5 weapon can react faster. The seed bomb can fire from a plurality of gun bodies, and the body can be selectively deployed to open the ignition mode at a very fast rate and produce a cone, a cone, a bullet that is directed toward the missile, and this can only be a slow fire line. Output

The machine gun ignition method of point impact is not _. In the exhibition, even if the middle line of the bullet is aligned on the target, multiple bullets can be used to close the target at a close distance of 10. In this specification, after n, and after, the use of the word means the muzzle toward the gun body, and the direction away from the rear end of the body, and the rear, the rear, and the rear are pointing toward the rear of the gun body or leaving muzzle.

Of course, it is to be understood that the invention has been described by way of example only, and that modifications and variations can be made by those skilled in the art, and the scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic cross-sectional view of a grab assembly of a first embodiment incorporating an ignition combination; FIG. 2 is a view of a fuse of the first embodiment. Another schematic cross-sectional view of Fig. 3 is a schematic cross-sectional view of another bullet incorporating the fuse of the second embodiment of the present invention; and Fig. 4 is a perspective view of the fuse-shell of the second embodiment. 17 1287078 [Main symbol representative symbol table] 10 Gun body assembly 21 Starting fuze 11 Grab the body 22 Fuze 12 Muzzle end 23 Ignition circuit 13 Gun body cover 24 Fuze front part 14 Back end 25 Fuze in the middle Part 15 Bullet 26 Fuze rear part 15a Bullet 27 Hole 15b Bullet 28 Aperture 15c Bullet 29 Aperture 16 Head element 30 Inner end face of tail hem portion Tail element 31 Sleeve portion 18 Body 32 Bolt 19 Tail hem portion 33 Tail The outer surface 20 of the hem portion advances the fuel filler 18

Claims (1)

The patent application scope of the patent application is revised. The patent application scope is as follows: 1. A method for including a plurality of axially associated fuel fillers for axially ejecting bullets from the gun body. An ignition device for a body assembly of a bullet stacked in a gun body, the ignition device comprising: a hole six disposed in each bullet body, wherein the hole communicates with the front and rear of the bullet body; and is disposed in the hole ^ In a fuse, the fuse includes a first portion configured to burn at a predetermined rate and a second portion configured to provide a sealing function, wherein the fuse is burned in the cavity to cause a correlation with the bullet The ignition of the fuel filler is advanced and the fuse provides a partial seal within the aperture 6. 2. The ignition device of claim 1, wherein the communication of the aperture with the front allows the fuse to be propelled by the fuel filler prior to being associated with the immediately preceding one of the axially stacked bullets during the ejection of the previous bullet The ignition is triggered by the ignition. 3. The ignition device of claim 1, wherein the fuse is elongate and comprises three portions, a front portion, a rear portion and an intermediate portion. 4. The ignition device of claim 3, wherein the intermediate portion of the fuse comprises a fuse material formulated to be combustible at a predetermined longitudinal rate. 5. The ignition device of claim 3, wherein the front portion of the fuse is comprised of a fuze material ignitable by combustion propellant fuel, the portion of which can be ignited in the middle of the fuze before ignition Part. 6. For the ignition device of claim 3, the front face of the fuse contained in the foremost bullet of 1287078 contained in the gun body is electrically or mechanically ignited. 7. The ignition device of claim 3, wherein the intermediate portion is formed by a fuze material selected to be burned at a predetermined longitudinal rate, and the intermediate material is burned or is about to end. The middle portion ignites the rear portion of the fuse. 8. An ignition device for a gun body assembly, the gun body assembly comprising: a body having a plurality of axially different numbers for continuously projecting bullets from the gun body Advancing the fuel filler together with 10 bullets stacked in the body, the ignition device includes: a hole disposed in each bullet body, wherein the hole communicates with the front and rear of the bullet body; 'disposed in the hole A fuse, the fuse comprising a portion configured to burn at a predetermined rate, wherein the fuse is burned in the aperture 15 to cause ignition of the propellant fuel filler associated with the bullet, wherein the fuse is elongated And comprising three parts, a front part, a rear part and an intermediate part, wherein the middle part of the fuze material provides a sealing function such that the intermediate portion of the material to be burned is provided in the hole At least part of the ^ I 20 seal. 9. The ignition device of claim 3, wherein the rear portion of the fuse is comprised of a fuze material ignitable by the intermediate portion of the combustion, and the associated propellant fuel filler is sequentially ignited. 10. The ignition device of claim 1, wherein the fuse package 2 1287078 comprises a solid sleeve of the material. 11. The ignition device of claim 1G, wherein the sturdy sleeve is retained within a cavity disposed in the body. 12. The igniter as claimed in claim 4, wherein the predetermined longitudinal _ 5 rate is calculated with reference to the desired time between the propellant fuel fill points in the axially stacked bullets. 13. The igniter as claimed in claim </ RTI> wherein the bullet system is provided with a first aperture communicating between the aperture and the front of the bullet body, and a first communication between the aperture and the rear of the bullet body Two apertures. 10. The ignition device of claim 13, wherein the aperture is aligned with a longitudinal axis of the sub-dance. 15. The ignition device of claim 13, wherein the first aperture and the second aperture are substantially dimensionally constrained relative to an inner diameter of the aperture. The ignition device of claim 13, wherein the first aperture is configured such that a front portion of the fuse is caused by combustion of the propellant fuel in the immediately adjacent one of the axial stacks The front part of the fuse is lit. 17. The ignition device of claim 13, wherein the second aperture system 20 is configured to ignite an associated propellant fuel fill by the post-combustion surface portion of the fuse. 18. A seed bomb comprising a body having a cavity for receiving a fuse, the fuse comprising a material configured to be combustible at a predetermined rate, and wherein the bullet is disposed to communicate between the aperture and the front of the bullet The 1287078 first aperture, and a second aperture that communicates between the aperture and the rear of the bullet. 19• A bullet as claimed in claim 18, wherein the fuse comprises a sturdy sleeve containing the fuse material. 5 20. The bullet of claim 18, wherein the bullet comprises at least two separate members for facilitating insertion of the fuse into the aperture. 21. The bullet of claim 19, wherein the bullet comprises at least two separate members for facilitating insertion of the fuse into the aperture. 22. The bullet of claim 20, wherein the separate members are joined together after the insertion of the letter, thereby retaining the fuse within the body. 23. The bullet of claim 21, wherein the separate members are joined together after the insertion of the fuse, thereby retaining the fuse in the bullet. 15 24. The bullet of claim 18, wherein the sturdy sleeve is held in the cavity of the bullet body. 25. The bullet of claim 19, wherein the sturdy sleeve is retained within the aperture of the bullet body. The bullet of any one of claims 18 to 25, wherein the sub-bullet comprises a head element and a tail element, and the tail element comprises a tail hem. 27. The bullet of claim 26, wherein the propellant fuel filler is suitably formed as a piece and housed within the tail hem. 28·If the bullet of the scope of claim 26 is used, the hem portion is 1287078 when used. _上::=: “Become the hole with the grab hole 5 10 15 11=profit a bullet that causes the hem to operate as a hole in the hole 3::: Γ item 28 of the bullet, which is formed by propelling the fuel, filling or the head element of the 1_ rear bullet 31. The bullet of the fourth patent of the Shishen patent, wherein the heart pumping is formed by propelling the fuel filler or by the rear sub-head element. Engagement 32. The bullet of claim 26, wherein 1 The nasal opening of the adjacent rear bullet is propelled into a seal with the (4) face of the tail hem, wherein one of the marriages: the inner end of the portion of the adjacent rear bullet is operated as a seal. 33. The bullet-shaped nose is advanced into engagement with the tail hem. 34. The bullet of claim 28, wherein - (4) the nose of the rear bullet is advanced to operate with the inner end of the tail hem Sealed joint. Joint Μ. Bullet as claimed in item 29 The nose portion of the adjacent rear bullet is deducted from the inner end of the tail hem portion. 36. The bullet of the 30th item of the patent application is reduced, and the nose portion of the adjacent rear bullet is deduced. The inner end surface of the tail hem portion is operatively sealed. Mountain 20 1287078 37. The bullet of claim 31, wherein a nose portion is advanced into an inner end surface of the tail hem portion adjacent to the rear bullet. The operating seal species ignites a plurality of advancement-filling branches associated with each of the individual bullets axially stacked in the body, and the towel-guide (four) is disposed in the i-hole of each of the bullets' and Wherein the bullet system is provided with a first aperture that communicates between the aperture= and the front of the bullet body, and a second aperture that communicates between the aperture and the rear of the bullet body, the method comprising the following steps: 38·— 5 10 20 The fuze in the front or front-most bullet in the sneak peek is ignited in the hole at the predetermined rate (four) - predetermined rate, and is ignited by the igniting of the propellant fuel filler; the ignited propellant fuel filler will The The front bullet shoots out from the robbing body and ignites the fuze contained in the next adjacent bullet in the stack; thereby, the remaining bullets in the plurality of bullets are successively ejected from the body in sequence. a gun body assembly, comprising: a body grab, the grab body having a plurality of bullets axially stacked with the respective propellant fuel filler for continuously projecting bullets from the gun body, the grab body The invention is characterized in that an ignition device comprises: a hole disposed in each bullet body, wherein the hole communicates with the front and the rear of the bullet body; and a fuse disposed in the hole, the fuse includes a preparation a first portion that is burned at a predetermined rate and a second portion that is configured to have a sealing function, wherein the fuse is burned in the cavity to cause ignition of the propellant fuel filler associated with the 6 1287078 bullet, At least a portion of the seal is provided within the aperture. 40. The grab body assembly of claim 39, wherein the communication of the hole with the front allows the fuse to be associated with the immediately preceding bullet in the axial stack 5 during the injection of the previous bullet Ignite by propelling the combustion of the fuel filler. 41. The body assembly of claim 39, wherein the fuse is elongate and comprises three portions, a front portion, a rear portion and an intermediate portion. 10 42. The body assembly of claim 41, wherein the middle portion of the fuse comprises a fuze material that is formulated to be combustible at a predetermined longitudinal rate. 43. The body assembly of claim 41, wherein the front portion of the fuse is constructed of a fuse material that can be ignited by a propellant fuel that is ignited, and the portion before ignition can be sequentially ignited. The middle part of the fuse. 44. The body assembly of claim 41, wherein the front face of the fuse contained in the foremost bullet in the body of the gun is electrically or mechanically ignited. 45. The body assembly of claim 41, wherein the intermediate portion 20 is comprised of a fuze material selected to be burned at a predetermined longitudinal rate and at the end of or near the end of combustion of the intermediate material The middle portion ignites the rear portion of the fuse. 46. The body assembly of claim 41, wherein the intermediate portion of the material to be burned provides at least a partial seal within the aperture. 1287078 47. The gun body assembly of claim 41, wherein the rear portion of the fuse is formed by a fuze material that can be ignited by the middle portion of the combustion and can sequentially ignite the associated propellant fuel fill. Things. 48. The grab body assembly of claim 39, wherein the fuse includes 5 a strong sleeve that houses the fuse material. 49. The body assembly of claim 48, wherein the sturdy sleeve is retained in a cavity disposed in the body of the bullet. 50. The grab body assembly of claim 41, wherein the predetermined longitudinal burn rate is calculated with reference to a desired time between propulsion fuel fill points 10 in the axially stacked bullets. 51. The gun body assembly of claim 39, wherein the bullet system is provided with a first aperture ' communicating between the aperture and the front of the bullet body and communicating between the aperture and the rear of the bullet body a second aperture. 52. The grab body assembly of claim 51, wherein the hole is aligned with a longitudinal axis of the 15 bullet. 5 3 · The gun body assembly of claim 51, wherein the first hole pinch and the second hole diameter are substantially limited in size compared to the inner diameter of the hole. 54. The gun body assembly of claim 51, wherein the first aperture system 20 is configured to cause the front portion of the fuse to be burned by the propellant fuel of the immediately preceding bullet in the axial stack. The front portion of the fuse is ignited. 55. The body assembly of claim 51, wherein the second aperture is configured to ignite an associated 1287078 propellant fuel fill by the post-combustion portion of the fuse. 1287078 柒, designated representative map: (1) The representative representative of the case is: (1). (2) The symbolic representation of the symbol of the representative figure is as follows: 捌 If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: 10 Gun body assembly 16 head element 11 Grab the body 17 End element 12 Muzzle end 19 Tail hem 13 grabbing end cap 20 propelling fuel filler 14 rear end 21 starting fuze 15a bullet 22 fuze 15b bullet 23 ignition circuit 15c bullet 27 hole six